Q-Concrete is a substance infused with the particles of the Mirage that can resist "weird supernatural Twilight Mirage bullshit".[1] It resembles regular concrete in appearance and durability. A fast-drying version can be made out of a particular mixture of gas and liquid.
It was created by the Concretetown Particulars in order to shut down magical effects, and in the process they ended up needing the Mirage particles given off by the Q-concrete to breathe. Their descendants, the Concretists, use the same concrete for buildings, but also incorporate it directly into their bodies.
This section contains spoilers for PALISADE 09: The Canvas of Dreams Pt. 4.
Click here to reveal.
Beings with magical or anomalous properties such as Iconoclasts will be unable to escape if enclosed in Q-concrete unless they are freed from the outside. The Usher of Truth was imprisoned by Advent in this manner for thousands of years.